Which two reactans can be used to make the salt called sodium chloride

Find the value of the variable and the length of each secant segment.

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

In the geometric progression –3, 12, −48… what term is 3,072?